• Country
• Great Britain (UK)

• Manufacturer / Brand
• McMichael Radio Ltd., Slough

• Year
• 1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 78019

• • alternative name: McMichael, Leslie

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 4

• Valves / Tubes
• MM4V or MS4B SP4 or AC/HL 354V Pen4VA_5pin or AC/Pen_5pin

• Number of Transistors

• Semiconductors
• Metal-rectifier

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Duplex Mains Four Transportable - McMichael Radio Ltd., Slough

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Dimensions (WHD)
• 16.5 x 19.25 x 10 inch / 419 x 489 x 254 mm

• Notes

• Metal rectifier. Internal frame aerial.

  Also called "Duplex Four Mains Transportable".

  In reality many types of Tubes/Valves "work". The maker's recommended list isn't known yet. The MS4B would be a Marconi recommendation.

• Price in first year of sale
• 22.05 GBP

• Source of data
• Radio! Radio!

• Literature/Schematics (1)
• -- Original prospect or advert

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 182 models, 121 with images and 120 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from McMichael Radio Ltd., Slough